A municipal pipeline foundation pit protection structure

Abstract

The application discloses a municipal pipeline foundation pit protection structure and relates to the protection field of municipal engineering, which comprises two anchor rods, a protection net cloth for blocking soil sliding arranged between the two anchor rods, a pull rope for connecting the protection net cloth and the two anchor rods, a top support rod arranged at one end of each of the two anchor rods and used for supporting the two anchor rods, a support plate arranged in the inside of each of the two anchor rods, a locking assembly arranged on the support plate and used for locking the top support rod, a driving assembly rotatably connected to one end of each of the two anchor rods and used for driving the locking assembly to lock the top support rod, a limiting hole formed in the top support rod and used for clamping the locking assembly, a first sliding groove formed in each of the two anchor rods and used for sliding of the locking assembly, and a limiting plate arranged on the support plate and used for limiting the sliding direction of the locking assembly. The application has the effects of convenient installation and dismounting, reduced construction cost, stable structure connection, anti-overturning and anti-loosening.

Description

Technical Field

[0001] This application relates to the field of municipal engineering protection, and in particular to a protective structure for municipal pipeline foundation pits. Background Technology

[0002] Currently, when laying pipelines in municipal construction, it is generally necessary to excavate a foundation pit of 1-5m. Shotcrete is usually used to protect the walls. Reinforcing bars are cross-fixed on the foundation pit wall to form a steel mesh, and then concrete is sprayed onto the slope with the steel mesh.

[0003] However, some pipeline pits are quite narrow. On the one hand, manual concrete spraying may be limited by space, making operation inconvenient and resulting in poor spraying quality and uneven application. On the other hand, the concrete wall itself has a certain thickness, so space needs to be reserved for the concrete wall during excavation. Therefore, more soil is often left over during backfilling, leading to higher transportation costs. While the concrete wall provides excellent protection, it no longer serves its purpose after pipeline laying and backfilling, resulting in some resource idleness.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: in narrow foundation pits, limited space leads to inconvenient operation; after the pipeline is laid and the soil is backfilled, the concrete retaining wall no longer serves its purpose and is difficult to disassemble, recycle, and reuse. Utility Model Content

[0005] To address the challenges of laying protective structures in narrow foundation pits and the difficulty in dismantling and recycling them, this application provides a protective structure for municipal pipeline foundation pits.

[0006] The technical solution for a municipal pipeline foundation pit protection structure provided in this application is as follows: A protective structure for a municipal pipeline foundation pit includes two anchor rods, a protective mesh laid between the two anchor rods to prevent soil slippage, and a rope connecting the protective mesh and the two anchor rods. Each anchor rod has a top support rod at one end. Each anchor rod has a support plate inside, and the support plate has a locking assembly for locking the top support rod. Each anchor rod has a drive assembly rotatably connected to one end to drive the locking assembly to lock the top support rod. The top support rod has a limiting hole for engaging the locking assembly. Each anchor rod has a first sliding groove for sliding the locking assembly. The support plate has a limiting plate for restricting the sliding direction of the locking assembly.

[0007] By adopting the above technical solution, two anchor rods serve as the basic support structure of the protective structure. During use, one end of each anchor rod is buried underground, and the protective netting is laid between the two anchor rods via a rope. This effectively prevents soil slippage, avoids soil collapse of the pit wall, and ensures construction safety. The top support rod is located at the end of the anchor rods away from the ground, providing support for both anchor rods and preventing hollow anchor rods from being insufficiently driven into the soil, which could lead to tilting or twisting under stress. This enhances the stability of the entire protective structure. The locking component engages with the limiting hole on the top support rod, and the limiting plate restricts the movement direction of the locking component. The driving component can drive the locking component to move into the limiting hole inside the top support rod, thereby locking the top support. The rod allows operators to control the engagement and disengagement of the locking component and the limiting hole by rotating the drive assembly. In use, one end of each of the two anchor rods is buried underground, then the top support rod is fitted onto the top of the anchor rod. The locking assembly is then driven to move until it engages with the limiting hole on the top support rod, locking it in place. Finally, the protective netting is laid between the two anchor rods using a pull rope. Compared to traditional shotcrete wall protection, this method is not limited by narrow pit spaces, is more convenient to operate, and eliminates the need for pre-reserved wall protection space, reducing the transportation costs of residual soil during backfilling. Furthermore, the protective structure can be quickly disassembled and recycled after use, and can be easily transported by tying it together with a pull rope, avoiding resource idleness.

[0008] Optionally, the driving assembly includes a rotating rod rotatably connected to one end of the anchor rod, a turntable disposed at the end of the rotating rod near the support plate for driving the locking assembly to lock the top support rod, and a baffle disposed on the surface of the rotating rod to restrict the sliding of the rotating rod on the anchor rod. The end of the rotating rod away from the turntable is provided with a first pull ring for pulling the anchor rod.

[0009] By adopting the above technical solution, when the locking component is to be driven to lock the top support rod, the rotating rod is rotated, the rotating rod drives the turntable to rotate, and the turntable drives the locking component to move until the locking component is engaged in the limiting hole inside the top support rod. The baffle on the surface of the rotating rod can effectively prevent the rotating rod from sliding on the anchor rod, so as to prevent the turntable from no longer driving the locking component to move. The first pull ring at the end of the rotating rod away from the turntable makes it convenient for the staff to turn the rotating rod and the turntable to drive the locking component to lock the top support rod, and at the same time, it is convenient for the staff to pull out the anchor rod later.

[0010] Optionally, the locking assembly includes a slider, a support column disposed on the side of the slider facing the turntable, the slider engaging with a limiting hole, and the support column being slidably connected to the turntable.

[0011] By adopting the above technical solution, when the top support rod is to be locked, since the support column is slidably connected to the turntable, the rotation of the turntable will drive the support column to move, which in turn will drive the slider to move. Under the restriction of the limiting plate, the slider slides towards the limiting hole. The slider first passes through the first sliding groove on the inner wall of the anchor rod, and finally engages with the limiting hole inside the top support rod to lock the top support rod.

[0012] Optionally, guide strips are provided on the outer surfaces of both anchor rods near the rotating rod, and a second sliding groove is provided on the top support rod to engage with the guide strips.

[0013] By adopting the above technical solution, when installing the top support rod, the top support rod is sleeved onto the anchor rod, and the guide strip on the outer surface of the anchor rod engages with the sliding groove on the top support rod, so that the top support rod can be quickly installed onto the anchor rod along the guide strip.

[0014] Optionally, both anchor rods are provided with support rings on the outer surface near the rotating rod to support the top support rod.

[0015] By adopting the above technical solution, the support ring is used to place the top support rod, preventing the top support rod from sliding downwards when the workers are installing it, making it easier for the workers to quickly install the top support rod, and at the same time making the installation of the top support rod more stable.

[0016] Optionally, the protective netting is provided with several second pull rings for threading pull ropes, and the outer surfaces of the two anchor rods are provided with several third pull rings for threading pull ropes.

[0017] By adopting the above technical solution, after the anchor rods are buried and the top support rods are installed, the pull ropes are passed through the second pull ring on the protective netting and the third pull ring on the outer surface of the anchor rods in sequence, so that a stable connection is established between the protective netting and the anchor rods through the pull ropes, and the protective netting can effectively prevent soil from sliding down.

[0018] Optionally, both anchor rods have through holes for threading ropes, and both anchor rods have limiting rings on their surfaces for guiding the ropes. The top support rod has an integrally formed tie post for securing the ropes.

[0019] By adopting the above technical solution, the rope is passed through the second pull ring on the protective netting and the third pull ring on the outer surface of the anchor rod in sequence. Then, the rope is passed through the threading hole inside the anchor rod and then through the limiting ring. Finally, the rope is tied to the tie post formed by the top support rod, so that the protective netting can be laid firmly between the two anchor rods, thereby effectively preventing soil from sliding down.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. Easy to install and disassemble, reducing construction costs. The top support rod is quickly positioned and installed through the guide strip and the second slide groove. Locking can be completed by rotating the drive component. No complicated tools are required. The pull rope can quickly fix the protective netting through the cooperation of the second pull ring, the third pull ring, the wire hole, and the tie post. Disassembly can be performed by simply untying the pull rope and rotating the drive component in the opposite direction. 2. The overall protective structure is stable and can resist overturning, preventing soil from falling and rolling. The top support rod and the support ring are rigidly locked by the slider of the locking component into the limit hole, which effectively prevents the anchor rod from tilting under force and the top support rod from falling off. The protective netting is laid between the two anchor rods to directly block the soil from falling and rolling off. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall protective structure provided in the embodiments of this application; Figure 2 This is a cross-sectional schematic diagram of the anchor bolt provided in the application embodiment; Figure 3 This is a front cross-sectional view provided in the embodiment of the application; Figure 4 yes Figure 4 A magnified view of part A in the image; Figure 5 This is a top cross-sectional view of the anchor rod and top support rod provided in the application embodiment.

[0023] Reference numerals: 1. Anchor bolt; 2. Protective netting; 3. Pull rope; 4. Top support rod; 5. Support plate; 6. Locking assembly; 601. Slider; 602. Support column; 7. Drive assembly; 701. Rotating rod; 702. Turntable; 703. Baffle; 8. Limiting hole; 9. First slide groove; 10. Limiting plate; 11. First pull ring; 12. Guide strip; 13. Second slide groove; 14. Support ring; 15. Second pull ring; 16. Third pull ring; 17. Threading hole; 18. Limiting ring; 19. Tie post. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] This application discloses a protective structure for municipal pipeline foundation pits.

[0026] Reference Figure 1 and Figure 2A municipal pipeline foundation pit protection structure includes two anchor rods 1, a protective mesh 2 laid between the two anchor rods 1, a pull rope 3 threaded between the two anchor rods 1 and the protective mesh 2, a top support rod 4 sleeved on the top of the anchor rod 1, a support plate 5 set inside the anchor rod 1, a locking assembly 6 set on the support plate 5, a drive assembly 7 rotating on the top of the anchor rod 1, a first sliding groove 9 opened on the anchor rod 1, and a limiting plate 10 set on the support plate 5.

[0027] Reference Figure 1 and Figure 2 In this structure, anchor rod 1 provides support and a foundation for the installation of protective netting 2; protective netting 2 is laid between two anchor rods 1 to prevent soil from falling off and rolling into the pit; pull rope 3 is used to connect the protective netting 2 to the anchor rods 1, ensuring a secure connection; top support rod 4 supports the two anchor rods 1, preventing them from tilting or twisting under stress due to insufficient soil penetration, and also controls the distance between the two anchor rods 1; support plate 5 provides installation support for locking assembly 6; locking assembly 6 locks top support rod 4, preventing it from shaking or falling off the anchor rods 1; drive assembly 7 drives locking assembly 6 to move, thereby locking top support rod 4; first groove 9 facilitates locking assembly 6 passing through anchor rod 1 to lock top support rod 4; limiting plate 10 restricts the direction of movement of locking assembly 6.

[0028] Reference Figure 1 and Figure 2 When installing the protective structure, first determine the distance between the two anchor rods 1, then ram the bottom of the anchor rods 1 into the soil layer, and attach the top support rod 4 to the top of the two anchor rods 1 to fix the distance between the two anchor rods 1. At the same time, it provides a certain support for the two anchor rods 1 to prevent the anchor rods 1 from tilting or twisting. Then, rotate the drive component 7. The drive component 7 drives the locking component 6 to pass through the first sliding groove 9 on the anchor rod 1 under the guidance of the limit plate 10, thereby locking the top support rod 4 and preventing the top support rod 4 from detaching from the anchor rod 1. Finally, the protective netting 2 is laid between the two anchor rods 1 by the pull rope 3, thus completing the installation of the foundation pit protection structure.

[0029] Reference Figure 3 and Figure 4The top support rod 4 has a limiting hole 8, the outer surface of the anchor rod 1 is provided with a guide strip 12, the top support rod 4 has a second sliding groove 13, and the outer surface of the anchor rod 1 is provided with a support ring 14. The limiting hole 8 is used to lock the top support rod 4 in conjunction with the locking assembly 6; the guide strip 12 is located on the outer surface of the anchor rod 1 near the rotating rod 701, and the second sliding groove 13 is adapted to the guide strip 12 to guide workers to quickly install the top support rod 4, while also limiting the position of the top support rod 4 on the anchor rod 1, thus facilitating the alignment of the slider 601 with the limiting hole 8 on the top support rod 4; the support ring 14 is fixed to the outer surface of the anchor rod 1 near the top, and the support ring 14 provides support for the top support rod 4, preventing it from sliding downwards.

[0030] Reference Figure 2 and Figure 4 The drive assembly 7 includes a rotating rod 701, a turntable 702, and a baffle 703. A first pull ring 11 is provided at one end of the rotating rod 701. The rotating rod 701 is rotatably connected to the top wall of the anchor rod 1, driving the turntable 702 to rotate. The turntable 702 is located at the bottom of the rotating rod 701, driving the locking assembly 6 to lock the top support rod 4. The baffle 703 restricts the sliding of the rotating rod 701 on the anchor rod 1. The first pull ring 11 facilitates easy pulling of the anchor rod 1 out of the soil during subsequent disassembly. When locking the top support rod 4, rotating the rotating rod 701 drives the turntable 702 to rotate, causing the turntable 702 to drive the locking assembly 6. The locking assembly 6 moves into the limiting hole 8 inside the top support rod 4, locking the top support rod 4.

[0031] Reference Figure 2 and Figure 5 The locking assembly 6 includes a slider 601 and a support column 602. The slider 601 abuts against the top of the support plate 5 and, restricted by the limiting plate 10, can only slide along the direction of the limiting hole 8. The support column 602 is located on top of the slider 601 and is slidably connected to the turntable 702. When the turntable 702 rotates, due to the slidable connection between the support column 602 and the turntable 702, the rotation of the turntable 702 drives the support column 602 to move, which in turn drives the slider 601 to slide. Restricted by the limiting plate 10, the slider 601 moves towards the limiting hole 8 inside the top support rod 4 until the slider 601 engages with the limiting hole 8 inside the top support rod 4, thereby locking the top support rod 4.

[0032] Reference Figure 1 and Figure 3The protective netting 2 is equipped with a second pull ring 15, the anchor rod 1 is equipped with a third pull ring 16, the anchor rod 1 has a threading hole 17, and the outer surface of the anchor rod 1 is equipped with a limit ring 18. The top support rod 4 has an integrally formed tie post 19. The second pull ring 15 on the protective netting 2 and the third pull ring 16 on the anchor rod 1 are both used to thread the pull rope 3, thereby firmly fixing the anchor rod 1 and the protective netting 2 together. The threading hole 17 is used to guide the free end of the pull rope 3 through the anchor rod 1, and under the guidance of the limit ring 18, the free end of the pull rope 3 is tied to the tie post 19, ensuring that the protective netting 2 mainly bears the horizontal tension and preventing the protective netting 2 from tearing due to uneven stress.

[0033] The implementation principle of a municipal pipeline foundation pit protection structure according to an embodiment of this application is as follows: When installing the foundation pit protection structure, first determine the distance between the two anchor rods 1, then ram the bottom of the anchor rod 1 into the soil layer, and then attach the top support rod 4 to the top of the anchor rod 1 until the top support rod 4 abuts against the top of the support ring 14. Then rotate the rotating rod 701, which drives the turntable 702 to rotate. Since the support column 602 is slidably connected to the turntable 702, the rotation of the turntable 702 drives the support column 602 and the slider at the same time. 601. Due to the restriction of the limiting plate 10, the slider 601 can only move towards the limiting hole 8 inside the top support rod 4. As the turntable 702 rotates, the slider 601 passes through the first groove 9 inside the anchor rod 1 and enters the limiting hole 8 inside the top support rod 4, thereby locking the top support rod 4. This makes the connection between the two anchor rods 1 more stable and effectively prevents the anchor rod 1 from tilting or twisting when the force is uneven. Then, one end of the pull rope 3 is tied to the third pull of the anchor rod 1. On ring 16, the free end of the pull rope 3 passes sequentially through the second pull ring 15 of the protective netting 2 and the third pull ring 16 of the anchor rod 1. Finally, the free end of the pull rope 3 passes sequentially through the threading hole 17 and the limiting ring 18 on the anchor rod 1, and is finally tied to the tie post 19 to fix the protective netting 2 tightly, thus quickly completing the installation of the foundation pit protection structure. During disassembly, the pull rope 3 is untied from the free end tied to the tie post 19, and then the pull rope 3 is pulled to pass through the limiting ring 18, the threading hole 17, and the second pull ring 16. Pull out from ring 15 and the third pull ring 16, rotate the rotating rod 701 in the opposite direction. The rotating rod 701 drives the turntable 702, which in turn drives the support column 602 to move. The support column 602 drives the slider 601, which disengages from the limiting hole 8 inside the top support rod 4 and no longer restricts the top support rod 4. Then the top support rod 4 is removed, and the anchor rod 1 is pulled out of the soil through the first pull ring 11. The disassembled protective structure can be tied together with the pull rope 3 for easy recycling and reuse, and is also easier to transport.

[0034] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective structure for a municipal pipeline foundation pit, comprising two anchor rods (1), a protective mesh (2) laid between the two anchor rods (1) to prevent soil slippage, and a rope (3) for connecting the protective mesh (2) and the two anchor rods (1), characterized in that: Each of the two anchor rods (1) is provided with a top support rod (4) for supporting the two anchor rods (1). Each of the two anchor rods (1) is provided with a support plate (5). The support plate (5) is provided with a locking assembly (6) for locking the top support rod (4). One end of each of the two anchor rods (1) is rotatably connected to a drive assembly (7) for driving the locking assembly (6) to lock the top support rod (4). The top support rod (4) is provided with a limiting hole (8) for engaging the locking assembly (6). Each of the two anchor rods (1) is provided with a first sliding groove (9) for sliding the locking assembly (6). The support plate (5) is provided with a limiting plate (10) for limiting the sliding direction of the locking assembly (6).

2. The municipal pipeline foundation pit protection structure according to claim 1, characterized in that: The drive assembly (7) includes a rotating rod (701) rotatably connected to one end of the anchor rod (1), a turntable (702) disposed at the end of the rotating rod (701) near the support plate (5) for driving the locking assembly (6) to lock the top support rod (4), and a baffle (703) disposed on the surface of the rotating rod (701) to restrict the rotating rod (701) from sliding on the anchor rod (1). The end of the rotating rod (701) away from the turntable (702) is provided with a first pull ring (11) for pulling the anchor rod (1).

3. The municipal pipeline foundation pit protection structure according to claim 2, characterized in that: The locking assembly (6) includes a slider (601) and a support column (602) disposed on the side of the slider (601) facing the turntable (702). The slider (601) is engaged with the limiting hole (8), and the support column (602) is slidably connected to the turntable (702).

4. The municipal pipeline foundation pit protection structure according to claim 1, characterized in that: The two anchor rods (1) are provided with guide strips (12) on the outer surface near the rotating rod (701), and the top support rod (4) is provided with a second sliding groove (13) that engages with the guide strips (12).

5. A municipal pipeline foundation pit protection structure according to claim 1, characterized in that: Both of the anchor rods (1) are provided with support rings (14) on the outer surface of the rod (701) near the top support rod (4).

6. The municipal pipeline foundation pit protection structure according to claim 1, characterized in that: The protective netting (2) is provided with several second pull rings (15) for threading the pull ropes (3), and the outer surfaces of the two anchor rods (1) are provided with several third pull rings (16) for threading the pull ropes (3).

7. A municipal pipeline foundation pit protection structure according to claim 1, characterized in that: Both of the anchor rods (1) have threading holes (17) for threading the pull rope (3) inside. Both of the anchor rods (1) have limiting rings (18) for guiding the pull rope (3) on their surfaces. The top support rod (4) has a tie post (19) integrally formed for tightening the pull rope (3).

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